/Engine/Plugins/Runtime/Metasound/Source/MetasoundFrontend/Public/MetasoundRouter.h
The AddressType must be unique per a subclass ofFTransmissionAddressas it is used to determine the validity of a static_cast fromFTransmissionAddressto the derived address type.
virtual [FName](API\Runtime\Core\UObject\FName) GetAddressType() const